Home / 12,982,912.28-19,476,139.80-5,408,106.56

Finding the Fourth Proportional to 12,982,912.28, 19,476,139.80 and 5,408,106.56

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Solution

The fourth proportional to 12,982,912.28, 19,476,139.80 and 5,408,106.56 is: 8,112,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,912.28 : 19,476,139.80 = 5,408,106.56 : x
  2. Step 2: Convert to fraction form
    12,982,912.28/19,476,139.80 = 5,408,106.56/x
  3. Step 3: Cross multiply
    12,982,912.28x = 19,476,139.80 × 5,408,106.56
  4. Step 4: Simplify right side
    12,982,912.28x = 105,329,039,415,857.08
  5. Step 5: Solve for x
    x = 105,329,039,415,857.08/12,982,912.28
  6. Step 6: Final answer
    x = 8,112,897.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.